13 Codelab Scratch3
How to use scratch3 for bpi:bit
First select the version of the system that works for you and get adapter ，No need installation , just open it.
And then going to refer to usb_microbit user manual，in a similar way，，choose mpfshell option。
Begin to use BPI:bit with CodeLab scratch 3
1,Make sure adapter software and scratch3 websites are open.
2，In scratch3, click on it (the expand button in the bottom left corner)
3，Scroll to the bottom, find the BPI :bit plug-in, select it, and click ok to return to the main interface.